#3F5FC0#3F5FC0

#3F5FC0 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.5% C 0.156 H 267.0°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#3F5FC0
RGB	rgb(63, 95, 192)
HSL	hsl(225, 51%, 50%)
HSV	hsv(225, 67%, 75%)
CMYK	cmyk(67.2%, 50.5%, 0%, 24.7%)
CIE-LAB	lab(42.83, 20.48, -54.45)
CIE-LCH	lch(42.83, 58.17, 290.62°)
OKLab	oklab(51.46% -0.0081 -0.1562)
OKLCH	oklch(51.46% 0.156 267)
XYZ	xyz(15.6532, 13.0454, 51.5520)
Luminance	0.1305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5FC0 #C0A03F

analogous

#3FA0C0 #3F5FC0 #5F3FC0

triadic

#3F5FC0 #C03F5F #5FC03F

tetradic

#3F5FC0 #C03FA0 #C0A03F #3FC05F

square

#3F5FC0 #C03FA0 #C0A03F #3FC05F

split-complementary

#3F5FC0 #C05F3F #A0C03F

monochromatic

#213164 #304892 #3F5FC0 #6D85CF #9BACDE

Accessibility & contrast

On white

5.82

#3F5FC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#3F5FC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5FC0

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5FC0	#FFFFFF	#000000	##FFFFFF
##3F5FC0	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#276BC3

Deuteranopia (green-blind)

#0060BE

Tritanopia (blue-blind)

#007686

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f5fc0;
/* rgb */ color: rgb(63, 95, 192);
/* oklch */ color: oklch(51.5% 0.156 267.0);

Tailwind

colors: {
  custom: {
    50: '#828bd4',
    500: '#3f5fc0',
    950: '#000000',
  },
}

SCSS

$custom: #3f5fc0;
$custom-light: #828bd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5fc0",
  "rgb": {
    "r": 63,
    "g": 95,
    "b": 192
  },
  "hsl": {
    "h": 225.116,
    "s": 50.588,
    "l": 50
  },
  "oklch": {
    "l": 0.51458,
    "c": 0.15643,
    "h": 267
  },
  "luminance": 0.13047
}

Semantic roles & 50–950 ramp

primary

#3F5FC0

secondary

#CABC91

accent

#B74EDA

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3F5FC0

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →